David Eccles Sr (May 12, 1849 – December 6, 1912) was an American businessman and industrialist who founded many businesses throughout the western United States and became Utah's first multimillionaire.

[1] In 1863 his family moved from Glasgow to the United States of America, sailing on the Cynosure[2] and eventually settling in Ogden Valley, located in eastern Weber County, Utah.

He worked for the mill for a year, then for a lumber corporation, and the Oregon and California Railroad.

The family moved back to Ogden, Utah, in 1869 after the completion of the Transcontinental Railroad hoping it would bring them work.

Under the practice of polygamy at the time, David married Ellen, and they made their home in Logan, Utah where he built a lavish yellow brick mansion for his new bride using lumber imported from his corporation in Oregon.

His companies prospered on his no-debt plan and view of achieving success rather than money.

With the estimated $4-7 million he made, mostly from his Oregon enterprises, he invested heavily in Utah.

David Eccles served as the second president of Utah Construction Company after the death of long-term associate Thomas Dee.

He was known for his aid to The Church of Jesus Christ of Latter-day Saints for lending large amounts of money to it at no interest.